An intense late-summer heat wave will descend on inland San Diego County this week, generating dangerously high temperatures in some locations into the weekend, forecasters advised Tuesday.

The expected onset of scorching conditions prompted the National Weather Service to issue an extreme-heat warning for local desert communities, effective from 10 a.m. Wednesday to 8 p.m. Saturday. Over the period, daily highs in those areas could reach 110 to 116 degrees, the NWS said .

Across the inland valleys and in the mountains, meanwhile, the mercury is likely to climb into the mid-90s to around 100 degrees or a little higher, according to meteorologists. For those locales, the weather service issued a less-urgent heat advisory, slated to run from 10 a.m. Wednesday to 8 p.m. Friday.

Join the 20

See Full Page